﻿$(function() {

	// Syntax highlighting
	$(".html").chili();
	$(".css").chili();
	$(".js").chili();

	var $win = $(window),
		$top = $('#to-top');

	// to the top arrow
	$win.scroll(function(){
		$top.stop(true,true)[ $win.scrollTop() > 450 ? 'fadeIn' : 'fadeOut']();
	});

	// smooth scrolling - http://css-tricks.com/snippets/jquery/smooth-scrolling/
	function filterPath(string) {
		return string
		.replace(/^\//,'')
		.replace(/(index|default).[a-zA-Z]{3,4}$/,'')
		.replace(/\/$/,'');
	}
	var locationPath = filterPath(location.pathname);
	var scrollElem = scrollableElement('html', 'body');

	$('a[href*=#]').each(function() {
		var thisPath = filterPath(this.pathname) || locationPath;
		if (  locationPath == thisPath
		&& (location.hostname == this.hostname || !this.hostname)
		&& this.hash.replace(/#/,'') ) {
			var $target = $(this.hash), target = this.hash;
			if (target) {
				var targetOffset = $target.offset().top;
				$(this).click(function(event) {
					event.preventDefault();
				$(scrollElem).animate({scrollTop: targetOffset}, 400, function() {
					location.hash = target;
				});
			});
		}
	}
});

// use the first element that is "scrollable"
function scrollableElement(els) {
	for (var i = 0, argLength = arguments.length; i <argLength; i++) {
		var el = arguments[i],
		$scrollElement = $(el);
		if ($scrollElement.scrollTop()> 0) {
			return el;
		} else {
			$scrollElement.scrollTop(1);
			var isScrollable = $scrollElement.scrollTop()> 0;
			$scrollElement.scrollTop(0);
			if (isScrollable) {
				return el;
			}
		}
	}
	return [];
}

});